Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Four distinct eluent peaks were detected at 3.10 min, 5.33 min, 7.07 min and 7.73 min by their ultraviolet absorption at 210 nm.
